Umbane otshintshayo olawulwa yi-PFC ephezulu

I-PFC yintsingiselo yokulungiswa kwezinto zamandla, esetyenziswa kakhulu ukuchaza ukusebenza kakuhle kwamandla ombane kwiimveliso ze-elektroniki. Okukhona amandla aphezulu, kokukhona ukusebenza kakuhle kwamandla ombane.

Kukho iintlobo ezimbini ze-PFC: i-passive PFC kunye ne-active PFC. I-Passive PFC ngokubanzi isebenzisa indlela yokuhlawula i-inductance ukunciphisa umahluko wesigaba phakathi kombane osisiseko kunye ne-voltage ye-AC input ukuphucula i-power factor, kodwa i-power factor ye-passive PFC ayiphezulu kakhulu kwaye inokufikelela kuphela kwi-0.7 ~ 0.8; I-Active PFC yenziwe yi-inductance, i-capacitance kunye nezinto ze-elektroniki, inokufikelela ukuya kwi-0.99. Incinci kwaye inokufikelela kwi-power factor ephezulu, kodwa ixabiso liphezulu kunele-passive PFC.

I-PFC idla ngokusetyenziswa njengombane osebenzayo kwi-PC, kwaye i-PFC ineempawu ezilandelayo ubuncinane:

1) I-voltage yokufaka inokuba ukusuka kwi-90V ukuya kwi-270V;

2) Umbane womgca ungaphezulu kwe-0.98, kwaye unezibonelelo zokulahleka okuphantsi kunye nokuthembeka okuphezulu;

3) I-PFC ye-IC ingasetyenziswa njengombane oncedisayo, ngoko ke i-transformer elindileyo ayisoloko iyimfuneko ekusebenziseni isekethe esebenzayo ye-PFC;

4) Isiphumo asiguquguquki ngokwevolthi yokufaka, ngoko ke ivolthi yokuphuma eqinileyo ingafumaneka;

5) I-DC voltage ripple ye-active PFC incinci kakhulu kwaye inika i-sine wave ye-100Hz / 120Hz (iphindwe kabini kune-power frequency). Ke ngoko, umbane osebenzisa i-active PFC akufuneki usebenzise i-capacitor yesihluzi esinamandla amakhulu.

I-Active PFC yenziwe nge-inductance, i-capacitance kunye nezinto ze-elektroniki. Inomthamo omncinci. Ilungisa i-current waveform nge-IC ekhethekileyo ukuze ihlawule umahluko wesigaba phakathi kombane kunye nombane. I-Active PFC inokufikelela kwi-power factor ephezulu - idla ngokuba ngaphezulu kwe-98%, kodwa ixabiso liphezulu kakhulu. Ukongeza, i-active PFC ingasetyenziswa njengombane oncedisayo. Ke ngoko, ekusebenziseni isekethe esebenzayo ye-PFC, i-standby transformer ayisoloko iyimfuneko, kwaye i-ripple ye-DC voltage ephumayo ye-active PFC incinci kakhulu. Olu mbane aludingi kusebenzisa i-capacitor yesihluzi esinamandla amakhulu.

Kutshanje siqalise izixhobo zombane zokutshintsha ze-2000W kunye ne-3000W ngePFC. Ixabiso lihle kakhulu. Lixabiso eliphantsi kakhulu kunelo lifanayo elikwimarike, kwaye ukusebenza kuzinzile kakhulu. Ukuba unomdla kulo, nceda unxibelelane nathi. Enkosi!